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A dynamical systems approach to the co-ordination of interceptive actionsButton, Christopher January 2000 (has links)
No description available.
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The Role of Anticipatory Muscle Activation in Catching Errors Under Load UncertaintySinn, Sohben R. 22 April 2022 (has links)
No description available.
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Tréninkový program brankáře fotbalu pro mládežnické a juniorské kategorie - metodické DVD\\ / Practice programme of football goalkeepers for young and junior category- systematic DVDKOPŘIVA, Luděk January 2008 (has links)
Sence of dissertation is completion up-to-date knowledges from practice footballs goalkeeper and illustration of elements this practice. Programme is identified for widest but also for special public. Like instrument for this purpose is used multimedia DVD with exhibitions several practices football goalkeeper. It helps to orient in probleme of selection acceptable procedures by creation of practices units and in sorting of several practices in frame of practice. It contains instruction to appropriation of basic know-how and for their resulting expansion oriented to perfect encompassment and to growth of effciency wards. It illustrates how should look pracices for goalkeeper and it illustrates way they should have coachs specialist, coachs beginner and all coach working with football goalkeepers taken on activity of personal practices that are reasonable their wards given to conditions and fantazy of coach.
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Analýza herních činností brankáře na ME U 21 2015 / Analysis of game activities of goalkeeper during European Championship Under-21 2015Zajíček, Tomáš January 2015 (has links)
Author: Bc. Tomáš Zajíček Title: Analysis of game activities of goalkeeper during European Championship Under-21 2015. Objectives: The main objective is to analyse of game activities of goalkeeper on European Chapmionship Under-21 2015. Partial objectives: ranking of all matches on European Chapmionship Under-21 2015 in football, completing data, frequency of game activities, ratio of defensive and offensive game activities of goalkeeper and comparing the effect of regular and irregular performance on the goalkeeper on European Chapmionship Under-21 2015 in Czech republic. Methods: For getting information there were used indirect observation in this Bachelor thesis. The indirect observation from videorecords was time postponed. Results: The results show that in current football the goalkeeper has to be in control of the game with his foot more than ever before. A study points to the fact that the goalkeeper has to offend four times more than defend during the game. Available data show that U21 goalkeepers run less towards center balls than their older colleagues. The data also show that especially defense experience and regular utilization during the game shows. Keywords: Goalkeeper, game activities of goalkeeper, catching ball, rebound ball, running out for centered balls, taking ball, throwing...
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Design, analysis, and simulation of a humanoid robotic arm applied to catchingYesmunt, Garrett Scot January 2014 (has links)
Indiana University-Purdue University Indianapolis (IUPUI) / There have been many endeavors to design humanoid robots that have human characteristics such as dexterity, autonomy and intelligence. Humanoid robots are intended to cooperate with humans and perform useful work that humans can perform. The main advantage of humanoid robots over other machines is that they are flexible and multi-purpose. In this thesis, a human-like robotic arm is designed and used in a task which is typically performed by humans, namely, catching a ball. The robotic arm was designed to closely resemble a human arm, based on anthropometric studies. A rigid multibody dynamics software was used to create a virtual model of the robotic arm, perform experiments, and collect data. The inverse kinematics of the robotic arm was solved using a Newton-Raphson numerical method with a numerically calculated Jacobian. The system was validated by testing its ability to find a kinematic solution for the catch position and successfully catch the ball within the robot's workspace. The tests were conducted by throwing the ball such that its path intersects different target points within the robot's workspace. The method used for determining the catch location consists of finding the intersection of the ball's trajectory with a virtual catch plane. The hand orientation was set so that the normal vector to the palm of the hand is parallel to the trajectory of the ball at the intersection point and a vector perpendicular to this normal vector remains in a constant orientation during the catch.
It was found that this catch orientation approach was reliable within a 0.35 x 0.4 meter window in the robot's workspace. For all tests within this window, the robotic arm successfully caught and dropped the ball in a bin. Also, for the tests within this window, the maximum position and orientation (Euler angle) tracking errors were 13.6 mm and 4.3 degrees, respectively. The average position and orientation tracking errors were 3.5 mm and 0.3 degrees, respectively. The work presented in this study can be applied to humanoid robots in industrial assembly lines and hazardous environment recovery tasks, amongst other applications.
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